• how do they created colors inside the tabs???

simply using the gimp:select the thing for changing color,choose a color and the html code ofr the color apears...and yes the colors in the tabs are in the html format

  • why in wikipedia there is {{yes}} and the color get grean...

that's a can create one with inside there is the same code as you can do on a wiki page,it's just faster to write {{yes}} than all the code for color and yes